Automatic advertising device



UNITED STATES PATENT OFFICE.

DAVID J. STEPHENSON, OF PORT HURON, MICHIGAN.

AUTOMATIC ADVERTISING DEVICE.

SPECIFICATION forming part of Letters Patent No.317.2401 dated May' 5, 1885- Application filed January 25, 1884.

.To all whom it may' concern:

Beit known that I, DAVID J. SrErHENsoN, of Port Huron, in the county of St. Clair and State of Michigan, have invented new and useful Improvements in Automatic Advertising Devices; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to certain new and useful improvements in the construction of advertising-clocks of that class which automatically and intermittently expose businesscards through an opening forvthe purpose in the door of the clock.

The invention consists in the peculiar construction of the various parts, their combination, and operation', as more fully hereinafter described, and particularly pointed ont in the claims.

Figure l is a front elevation of the clock and its attachments with the clock-door open. Fig. 2 is a detached detail showing the connection between the clock-train and the shaft which carries the cards.

In the accompanying drawings, which form a part of this specification, A represents a clock-ease provided with a door, B, and within this case is laterally journaled the two shafts C and D, around which, upon suitable drums, E, on each shaft, is carried the endless belt F, which is divided into equal spaces of equal length. The drumsare rectangular in form, each face thereof being equal to one of the divisions of the endless belt, and the endless belt is made of thin sheets of metal in sections properly hinged together, such hinges or connections being so made as to form clips upon the front face of each to hold cards for advertising purposes, and readily allow the same to be removed and changed when necessary. Upon the shaftD is the pinion G, driven by the cog-wheel H, which is suitably journaled, and which is driven by a spring, I', inclosed within the ease or drum I, which spring is wound up through the key -hole J. Upon the opposite end of this shaft D is secured a scapewheel, K.

L is the hour-wheel or minute-wheel of the clock-train proper, carrying the cam M, which in its rotation causes the lever N, carrying the pallets O and l?, to control the intermittent (No model.)

movement of the scape-wheel K, and limit it to. four stoppages in each revolution of the shaft D. The front face of this scape-wheel is provided with a series of pins, o, or their equivalent, whichin the intermittent rotation of such scape-wheel rings the bell in the following nianner: A crank-lever, S, supported in suitable bearings, carries a hammer at its upper end and has a bent portion, s, at its lower end, which bent portion is set so as to be between the bearings in which the shiftlever S turns, and the scape-wheel K, so that when one of the pins o" comes in Contact with the bent portion s it moves it until it assumes the position shown in dotted lines, when the spring S causes it to return to its normal posit-ion, thus giving a vibratory movement to the crank-lever S, by means of which the bell T is rung at each movement of such scapewheel.

U is an aperture through the door of the clock, preferably covered with glass, through which the cards upon the endless belt are intermittently exposed by the intermittent rotation of the shaft D, through the meanshereinbefore described. I

Vhat I claim as my invention is l. The shaft D, rotated by a spring movement, and the endless chain F, supported and imp elled thereby, in combination with a clock and a clock-case, the scape-wheel K, secured directly to said shaft, the cam M, and the three-armed lever N O l? the arm N operated by said cam, and the arms O P, operating on said scape-wheel to automatically regulate the movement of said shaft, substantially as and for the purpose set forth.

2. The advertising device herein shown and described, consisting of the shaft D, endless chain F, supported and impelled thereby, scape-wheel K, secured to said shaft and provided with pins r upon its front face, wheel L, carrying cam M, lever N, carrying pallets O and P for controlling the intermittent motion of said scape-wheel, and the crank-lever S, having bent portion s, in combination with a clock and a clock-case, as and for the purposes set forth.

i DAVID J. srEPHENson.

Witnesses E. SCULLY, H. S. SPRAGUE.

IOO 

